package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;
@Service
public class UserserviceImpl implements UserService {
    public static final String WX_LOGIN="https://api.weixin.qq.com/sns/jscode2swssion";
  @Autowired
    UserMapper userMapper;
    @Autowired
   private WeChatProperties weChatProperties;
    @Override
    public User wxlogin(UserLoginDTO userLoginDTO) {
      String openid=getOpenid(userLoginDTO.getCode());
        if(openid==null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);

        }
        User user=userMapper.getById(openid);
        if(user==null){
            user=User.builder().openid(openid).createTime(LocalDateTime.now()).build();
            userMapper.insert(user);
        }
        return user;
    }
    private String getOpenid(String code){
        Map<String,String> map=new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code", code);
        map.put("grant_type","authorization_code");
        String json=HttpClientUtil.doGet(WX_LOGIN,map);
        JSONObject jsonObject= JSON.parseObject(json);
        String openid=jsonObject.getString("openid");
        return  openid;
    }
}
